Hello, I have got a asus p5b-vm which is around 2 yrs old. The board has become very problematic. 1) Sometimes the keyboard doesnt work. 2) After hibernating the machine when i switch it on the mouse doesnt work. 3) For the last few days I am getting a bsod - "Driver_IRQL_Not_Less_Or_Equal" which I understood that it may be the problem with the network interface. Now network is inbuilt. 4) Sometimes the pc hangs without any reason. 5) If I move the cabinet while it is `on` the monitor goes blank and the screen comes only after a long period of break. This was not usual but after i bought a 8600gt second hand after taking advice from here the problem has come. I think its the problem with the pci-e slot in the m/b. Thus i have decided to give this m/b for repair as it is still under warranty and buy a new m/b. Plz suggest me a m/b within 3-4k which will have builtin wifi. I have core2duo 6420 proccy. I am averse to buying another asus m/b if its better than others. Also tell me where is the service centre of asus in kolkata.